, terrorists attacked the u.s. consulate in benghazi, libya. >> we will continue pushing and asking questions about benghazi, not because it's personal, not because we're republicans and he's a democrat, but because america needs to learn what happened and we need to learn from our mistakes. >> this, despite testimony on benghazi from general petraeus, hillary clinton, admiral mike mullen, leon panetta, martin dempsey, but it's not enough. republicans want to know what happened as the attack in benghazi went down and who changed those talking points. they want more answers from the president. so dana, is chuck, is the blockage of chuck hagel's confirmation because of benghazi, as lindsey graham illustrates or is it because of something else? >> reporter: it is mostly because of chuck hagel. benghazi was, they sort of have been on a crusade to get more answers for benghazi and like you see many, many times here in the senate, they saw chuck hagel and his nomination as a way to use that as leverage to get answers and they did, they got an answer about what the president's role was on that day.